I had a set of Cobra One Length last year. Maybe it was the shaft (graphite, senior flex), but I couldn't get used to the 9-pw-gw feeling VERY light! Also, the trajectory, esp. with the shorter irons was VERY high. I sold them and
have moved on. I'd recommend that your friend somehow find a way to TRY a set first, and try them outdoors, not
in an indoor facility if possible, before buying.